linux-kernel - Re: System clock runs too fast after 2.6.27 -> 2.6.28.1 upgrade

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Message-ID: <20090123001200.GC21473@genesis.frugalware.org>
Date:	Fri, 23 Jan 2009 01:12:00 +0100
From:	Miklos Vajna <vmiklos@...galware.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	john stultz <johnstul@...ibm.com>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Gabriel C <nix.or.die@...glemail.com>,
	CSÉCSY László <boobaa@...galware.org>
Subject: Re: System clock runs too fast after 2.6.27 -> 2.6.28.1 upgrade

On Thu, Jan 22, 2009 at 08:55:58PM +0100, Ingo Molnar <mingo@...e.hu> wrote:
> these look suspect in the good->bad diff:
> 
>  # CONFIG_X86_VOYAGER is not set
>  # CONFIG_X86_GENERICARCH is not set
>  # CONFIG_X86_VSMP is not set
> -# CONFIG_X86_VISWS is not set
> -# CONFIG_X86_RDC321X is not set
> +CONFIG_X86_VISWS=y
> +CONFIG_X86_RDC321X=y
>  CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
> -# CONFIG_PARAVIRT_GUEST is not set
> +CONFIG_PARAVIRT_GUEST=y
> +# CONFIG_VMI is not set
> +CONFIG_KVM_CLOCK=y
> +CONFIG_KVM_GUEST=y
> +CONFIG_LGUEST_GUEST=y
> +CONFIG_PARAVIRT=y
> +CONFIG_PARAVIRT_CLOCK=y
> +# CONFIG_PARAVIRT_DEBUG is not set
>  CONFIG_MEMTEST=y

Hmm it seems my reply to this mail was lost, so:

First I build with CONFIG_X86_VISWS, CONFIG_X86_RDC321X and
CONFIG_PARAVIRT_GUEST disabled, then the clock became normal again.

Then later I tried just disabling CONFIG_X86_VISWS and
CONFIG_X86_RDC321X, and that was enough as well.

Thank you!

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